LXR linux/arch/arm/mach-s3c24xx/mach-mini2440.c

   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
   4//      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
   5//      and modifications by SBZ <sbz@spgui.org> and
   6//      Weibing <http://weibing.blogbus.com> and
   7//      Michel Pollet <buserror@gmail.com>
   8//
   9// For product information, visit http://code.google.com/p/mini2440/
  10
  11#include <linux/kernel.h>
  12#include <linux/types.h>
  13#include <linux/interrupt.h>
  14#include <linux/list.h>
  15#include <linux/timer.h>
  16#include <linux/init.h>
  17#include <linux/gpio.h>
  18#include <linux/input.h>
  19#include <linux/io.h>
  20#include <linux/serial_core.h>
  21#include <linux/serial_s3c.h>
  22#include <linux/dm9000.h>
  23#include <linux/property.h>
  24#include <linux/platform_device.h>
  25#include <linux/gpio_keys.h>
  26#include <linux/i2c.h>
  27#include <linux/mmc/host.h>
  28
  29#include <asm/mach/arch.h>
  30#include <asm/mach/map.h>
  31
  32#include <mach/hardware.h>
  33#include <mach/fb.h>
  34#include <asm/mach-types.h>
  35
  36#include <mach/regs-gpio.h>
  37#include <linux/platform_data/leds-s3c24xx.h>
  38#include <mach/regs-lcd.h>
  39#include <mach/irqs.h>
  40#include <mach/gpio-samsung.h>
  41#include <linux/platform_data/mtd-nand-s3c2410.h>
  42#include <linux/platform_data/i2c-s3c2410.h>
  43#include <linux/platform_data/mmc-s3cmci.h>
  44#include <linux/platform_data/usb-s3c2410_udc.h>
  45
  46#include <linux/mtd/mtd.h>
  47#include <linux/mtd/rawnand.h>
  48#include <linux/mtd/nand_ecc.h>
  49#include <linux/mtd/partitions.h>
  50
  51#include <plat/gpio-cfg.h>
  52#include <plat/devs.h>
  53#include <plat/cpu.h>
  54#include <plat/samsung-time.h>
  55
  56#include <sound/s3c24xx_uda134x.h>
  57
  58#include "common.h"
  59
  60#define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
  61
  62static struct map_desc mini2440_iodesc[] __initdata = {
  63        /* nothing to declare, move along */
  64};
  65
  66#define UCON S3C2410_UCON_DEFAULT
  67#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  68#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  69
  70
  71static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
  72        [0] = {
  73                .hwport      = 0,
  74                .flags       = 0,
  75                .ucon        = UCON,
  76                .ulcon       = ULCON,
  77                .ufcon       = UFCON,
  78        },
  79        [1] = {
  80                .hwport      = 1,
  81                .flags       = 0,
  82                .ucon        = UCON,
  83                .ulcon       = ULCON,
  84                .ufcon       = UFCON,
  85        },
  86        [2] = {
  87                .hwport      = 2,
  88                .flags       = 0,
  89                .ucon        = UCON,
  90                .ulcon       = ULCON,
  91                .ufcon       = UFCON,
  92        },
  93};
  94
  95/* USB device UDC support */
  96
  97static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
  98        .pullup_pin = S3C2410_GPC(5),
  99};
 100
 101
 102/* LCD timing and setup */
 103
 104/*
 105 * This macro simplifies the table bellow
 106 */
 107#define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
 108                        _yres,margin_top,margin_bottom,vsync, refresh) \
 109        .width = _xres, \
 110        .xres = _xres, \
 111        .height = _yres, \
 112        .yres = _yres, \
 113        .left_margin    = margin_left,  \
 114        .right_margin   = margin_right, \
 115        .upper_margin   = margin_top,   \
 116        .lower_margin   = margin_bottom,        \
 117        .hsync_len      = hsync,        \
 118        .vsync_len      = vsync,        \
 119        .pixclock       = ((_clock*100000000000LL) /    \
 120                           ((refresh) * \
 121                           (hsync + margin_left + _xres + margin_right) * \
 122                           (vsync + margin_top + _yres + margin_bottom))), \
 123        .bpp            = 16,\
 124        .type           = (S3C2410_LCDCON1_TFT16BPP |\
 125                           S3C2410_LCDCON1_TFT)
 126
 127static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
 128        [0] = { /* mini2440 + 3.5" TFT + touchscreen */
 129                _LCD_DECLARE(
 130                        7,                      /* The 3.5 is quite fast */
 131                        240, 21, 38, 6,         /* x timing */
 132                        320, 4, 4, 2,           /* y timing */
 133                        60),                    /* refresh rate */
 134                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 135                                   S3C2410_LCDCON5_INVVLINE |
 136                                   S3C2410_LCDCON5_INVVFRAME |
 137                                   S3C2410_LCDCON5_INVVDEN |
 138                                   S3C2410_LCDCON5_PWREN),
 139        },
 140        [1] = { /* mini2440 + 7" TFT + touchscreen */
 141                _LCD_DECLARE(
 142                        10,                     /* the 7" runs slower */
 143                        800, 40, 40, 48,        /* x timing */
 144                        480, 29, 3, 3,          /* y timing */
 145                        50),                    /* refresh rate */
 146                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 147                                   S3C2410_LCDCON5_INVVLINE |
 148                                   S3C2410_LCDCON5_INVVFRAME |
 149                                   S3C2410_LCDCON5_PWREN),
 150        },
 151        /* The VGA shield can outout at several resolutions. All share 
 152         * the same timings, however, anything smaller than 1024x768
 153         * will only be displayed in the top left corner of a 1024x768
 154         * XGA output unless you add optional dip switches to the shield.
 155         * Therefore timings for other resolutions have been omitted here.
 156         */
 157        [2] = {
 158                _LCD_DECLARE(
 159                        10,
 160                        1024, 1, 2, 2,          /* y timing */
 161                        768, 200, 16, 16,       /* x timing */
 162                        24),    /* refresh rate, maximum stable,
 163                                 tested with the FPGA shield */
 164                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 165                                   S3C2410_LCDCON5_HWSWP),
 166        },
 167        /* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
 168        [3] = {
 169                _LCD_DECLARE(
 170                        /* clock */
 171                        7,
 172                        /* xres, margin_right, margin_left, hsync */
 173                        320, 68, 66, 4,
 174                        /* yres, margin_top, margin_bottom, vsync */
 175                        240, 4, 4, 9,
 176                        /* refresh rate */
 177                        60),
 178                .lcdcon5        = (S3C2410_LCDCON5_FRM565 |
 179                                   S3C2410_LCDCON5_INVVDEN |
 180                                   S3C2410_LCDCON5_INVVFRAME |
 181                                   S3C2410_LCDCON5_INVVLINE |
 182                                   S3C2410_LCDCON5_INVVCLK |
 183                                   S3C2410_LCDCON5_HWSWP),
 184        },
 185};
 186
 187/* todo - put into gpio header */
 188
 189#define S3C2410_GPCCON_MASK(x)  (3 << ((x) * 2))
 190#define S3C2410_GPDCON_MASK(x)  (3 << ((x) * 2))
 191
 192static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
 193        .displays        = &mini2440_lcd_cfg[0], /* not constant! see init */
 194        .num_displays    = 1,
 195        .default_display = 0,
 196
 197        /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
 198         * and disable the pull down resistors on pins we are using for LCD
 199         * data. */
 200
 201        .gpcup          = (0xf << 1) | (0x3f << 10),
 202
 203        .gpccon         = (S3C2410_GPC1_VCLK   | S3C2410_GPC2_VLINE |
 204                           S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
 205                           S3C2410_GPC10_VD2   | S3C2410_GPC11_VD3 |
 206                           S3C2410_GPC12_VD4   | S3C2410_GPC13_VD5 |
 207                           S3C2410_GPC14_VD6   | S3C2410_GPC15_VD7),
 208
 209        .gpccon_mask    = (S3C2410_GPCCON_MASK(1)  | S3C2410_GPCCON_MASK(2)  |
 210                           S3C2410_GPCCON_MASK(3)  | S3C2410_GPCCON_MASK(4)  |
 211                           S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
 212                           S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
 213                           S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
 214
 215        .gpdup          = (0x3f << 2) | (0x3f << 10),
 216
 217        .gpdcon         = (S3C2410_GPD2_VD10  | S3C2410_GPD3_VD11 |
 218                           S3C2410_GPD4_VD12  | S3C2410_GPD5_VD13 |
 219                           S3C2410_GPD6_VD14  | S3C2410_GPD7_VD15 |
 220                           S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
 221                           S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
 222                           S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
 223
 224        .gpdcon_mask    = (S3C2410_GPDCON_MASK(2)  | S3C2410_GPDCON_MASK(3) |
 225                           S3C2410_GPDCON_MASK(4)  | S3C2410_GPDCON_MASK(5) |
 226                           S3C2410_GPDCON_MASK(6)  | S3C2410_GPDCON_MASK(7) |
 227                           S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
 228                           S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
 229                           S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
 230};
 231
 232/* MMC/SD  */
 233
 234static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
 235   .gpio_detect   = S3C2410_GPG(8),
 236   .gpio_wprotect = S3C2410_GPH(8),
 237   .set_power     = NULL,
 238   .ocr_avail     = MMC_VDD_32_33|MMC_VDD_33_34,
 239};
 240
 241/* NAND Flash on MINI2440 board */
 242
 243static struct mtd_partition mini2440_default_nand_part[] __initdata = {
 244        [0] = {
 245                .name   = "u-boot",
 246                .size   = SZ_256K,
 247                .offset = 0,
 248        },
 249        [1] = {
 250                .name   = "u-boot-env",
 251                .size   = SZ_128K,
 252                .offset = SZ_256K,
 253        },
 254        [2] = {
 255                .name   = "kernel",
 256                /* 5 megabytes, for a kernel with no modules
 257                 * or a uImage with a ramdisk attached */
 258                .size   = 0x00500000,
 259                .offset = SZ_256K + SZ_128K,
 260        },
 261        [3] = {
 262                .name   = "root",
 263                .offset = SZ_256K + SZ_128K + 0x00500000,
 264                .size   = MTDPART_SIZ_FULL,
 265        },
 266};
 267
 268static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
 269        [0] = {
 270                .name           = "nand",
 271                .nr_chips       = 1,
 272                .nr_partitions  = ARRAY_SIZE(mini2440_default_nand_part),
 273                .partitions     = mini2440_default_nand_part,
 274                .flash_bbt      = 1, /* we use u-boot to create a BBT */
 275        },
 276};
 277
 278static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
 279        .tacls          = 0,
 280        .twrph0         = 25,
 281        .twrph1         = 15,
 282        .nr_sets        = ARRAY_SIZE(mini2440_nand_sets),
 283        .sets           = mini2440_nand_sets,
 284        .ignore_unset_ecc = 1,
 285        .ecc_mode       = NAND_ECC_HW,
 286};
 287
 288/* DM9000AEP 10/100 ethernet controller */
 289
 290static struct resource mini2440_dm9k_resource[] = {
 291        [0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE, 4),
 292        [1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE + 4, 4),
 293        [2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
 294                                                | IORESOURCE_IRQ_HIGHEDGE),
 295};
 296
 297/*
 298 * The DM9000 has no eeprom, and it's MAC address is set by
 299 * the bootloader before starting the kernel.
 300 */
 301static struct dm9000_plat_data mini2440_dm9k_pdata = {
 302        .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 303};
 304
 305static struct platform_device mini2440_device_eth = {
 306        .name           = "dm9000",
 307        .id             = -1,
 308        .num_resources  = ARRAY_SIZE(mini2440_dm9k_resource),
 309        .resource       = mini2440_dm9k_resource,
 310        .dev            = {
 311                .platform_data  = &mini2440_dm9k_pdata,
 312        },
 313};
 314
 315/*  CON5
 316 *      +--+     /-----\
 317 *      |  |    |       |
 318 *      |  |    |  BAT  |
 319 *      |  |     \_____/
 320 *      |  |
 321 *      |  |  +----+  +----+
 322 *      |  |  | K5 |  | K1 |
 323 *      |  |  +----+  +----+
 324 *      |  |  +----+  +----+
 325 *      |  |  | K4 |  | K2 |
 326 *      |  |  +----+  +----+
 327 *      |  |  +----+  +----+
 328 *      |  |  | K6 |  | K3 |
 329 *      |  |  +----+  +----+
 330 *        .....
 331 */
 332static struct gpio_keys_button mini2440_buttons[] = {
 333        {
 334                .gpio           = S3C2410_GPG(0),               /* K1 */
 335                .code           = KEY_F1,
 336                .desc           = "Button 1",
 337                .active_low     = 1,
 338        },
 339        {
 340                .gpio           = S3C2410_GPG(3),               /* K2 */
 341                .code           = KEY_F2,
 342                .desc           = "Button 2",
 343                .active_low     = 1,
 344        },
 345        {
 346                .gpio           = S3C2410_GPG(5),               /* K3 */
 347                .code           = KEY_F3,
 348                .desc           = "Button 3",
 349                .active_low     = 1,
 350        },
 351        {
 352                .gpio           = S3C2410_GPG(6),               /* K4 */
 353                .code           = KEY_POWER,
 354                .desc           = "Power",
 355                .active_low     = 1,
 356        },
 357        {
 358                .gpio           = S3C2410_GPG(7),               /* K5 */
 359                .code           = KEY_F5,
 360                .desc           = "Button 5",
 361                .active_low     = 1,
 362        },
 363#if 0
 364        /* this pin is also known as TCLK1 and seems to already
 365         * marked as "in use" somehow in the kernel -- possibly wrongly */
 366        {
 367                .gpio           = S3C2410_GPG(11),      /* K6 */
 368                .code           = KEY_F6,
 369                .desc           = "Button 6",
 370                .active_low     = 1,
 371        },
 372#endif
 373};
 374
 375static struct gpio_keys_platform_data mini2440_button_data = {
 376        .buttons        = mini2440_buttons,
 377        .nbuttons       = ARRAY_SIZE(mini2440_buttons),
 378};
 379
 380static struct platform_device mini2440_button_device = {
 381        .name           = "gpio-keys",
 382        .id             = -1,
 383        .dev            = {
 384                .platform_data  = &mini2440_button_data,
 385        }
 386};
 387
 388/* LEDS */
 389
 390static struct s3c24xx_led_platdata mini2440_led1_pdata = {
 391        .name           = "led1",
 392        .gpio           = S3C2410_GPB(5),
 393        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 394        .def_trigger    = "heartbeat",
 395};
 396
 397static struct s3c24xx_led_platdata mini2440_led2_pdata = {
 398        .name           = "led2",
 399        .gpio           = S3C2410_GPB(6),
 400        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 401        .def_trigger    = "nand-disk",
 402};
 403
 404static struct s3c24xx_led_platdata mini2440_led3_pdata = {
 405        .name           = "led3",
 406        .gpio           = S3C2410_GPB(7),
 407        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 408        .def_trigger    = "mmc0",
 409};
 410
 411static struct s3c24xx_led_platdata mini2440_led4_pdata = {
 412        .name           = "led4",
 413        .gpio           = S3C2410_GPB(8),
 414        .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 415        .def_trigger    = "",
 416};
 417
 418static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
 419        .name           = "backlight",
 420        .gpio           = S3C2410_GPG(4),
 421        .def_trigger    = "backlight",
 422};
 423
 424static struct platform_device mini2440_led1 = {
 425        .name           = "s3c24xx_led",
 426        .id             = 1,
 427        .dev            = {
 428                .platform_data  = &mini2440_led1_pdata,
 429        },
 430};
 431
 432static struct platform_device mini2440_led2 = {
 433        .name           = "s3c24xx_led",
 434        .id             = 2,
 435        .dev            = {
 436                .platform_data  = &mini2440_led2_pdata,
 437        },
 438};
 439
 440static struct platform_device mini2440_led3 = {
 441        .name           = "s3c24xx_led",
 442        .id             = 3,
 443        .dev            = {
 444                .platform_data  = &mini2440_led3_pdata,
 445        },
 446};
 447
 448static struct platform_device mini2440_led4 = {
 449        .name           = "s3c24xx_led",
 450        .id             = 4,
 451        .dev            = {
 452                .platform_data  = &mini2440_led4_pdata,
 453        },
 454};
 455
 456static struct platform_device mini2440_led_backlight = {
 457        .name           = "s3c24xx_led",
 458        .id             = 5,
 459        .dev            = {
 460                .platform_data  = &mini2440_led_backlight_pdata,
 461        },
 462};
 463
 464/* AUDIO */
 465
 466static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
 467        .l3_clk = S3C2410_GPB(4),
 468        .l3_mode = S3C2410_GPB(2),
 469        .l3_data = S3C2410_GPB(3),
 470        .model = UDA134X_UDA1341
 471};
 472
 473static struct platform_device mini2440_audio = {
 474        .name           = "s3c24xx_uda134x",
 475        .id             = 0,
 476        .dev            = {
 477                .platform_data  = &mini2440_audio_pins,
 478        },
 479};
 480
 481/*
 482 * I2C devices
 483 */
 484static const struct property_entry mini2440_at24_properties[] = {
 485        PROPERTY_ENTRY_U32("pagesize", 16),
 486        { }
 487};
 488
 489static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
 490        {
 491                I2C_BOARD_INFO("24c08", 0x50),
 492                .properties = mini2440_at24_properties,
 493        },
 494};
 495
 496static struct uda134x_platform_data s3c24xx_uda134x = {
 497        .l3 = {
 498                .gpio_clk = S3C2410_GPB(4),
 499                .gpio_data = S3C2410_GPB(3),
 500                .gpio_mode = S3C2410_GPB(2),
 501                .use_gpios = 1,
 502                .data_hold = 1,
 503                .data_setup = 1,
 504                .clock_high = 1,
 505                .mode_hold = 1,
 506                .mode = 1,
 507                .mode_setup = 1,
 508        },
 509        .model = UDA134X_UDA1341,
 510};
 511
 512static struct platform_device uda1340_codec = {
 513                .name = "uda134x-codec",
 514                .id = -1,
 515                .dev = {
 516                        .platform_data  = &s3c24xx_uda134x,
 517                },
 518};
 519
 520static struct platform_device *mini2440_devices[] __initdata = {
 521        &s3c_device_ohci,
 522        &s3c_device_wdt,
 523        &s3c_device_i2c0,
 524        &s3c_device_rtc,
 525        &s3c_device_usbgadget,
 526        &mini2440_device_eth,
 527        &mini2440_led1,
 528        &mini2440_led2,
 529        &mini2440_led3,
 530        &mini2440_led4,
 531        &mini2440_button_device,
 532        &s3c_device_nand,
 533        &s3c_device_sdi,
 534        &s3c2440_device_dma,
 535        &s3c_device_iis,
 536        &uda1340_codec,
 537        &mini2440_audio,
 538};
 539
 540static void __init mini2440_map_io(void)
 541{
 542        s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
 543        s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
 544        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 545}
 546
 547static void __init mini2440_init_time(void)
 548{
 549        s3c2440_init_clocks(12000000);
 550        samsung_timer_init();
 551}
 552
 553/*
 554 * mini2440_features string
 555 *
 556 * t = Touchscreen present
 557 * b = backlight control
 558 * c = camera [TODO]
 559 * 0-9 LCD configuration
 560 *
 561 */
 562static char mini2440_features_str[12] __initdata = "0tb";
 563
 564static int __init mini2440_features_setup(char *str)
 565{
 566        if (str)
 567                strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
 568        return 1;
 569}
 570
 571__setup("mini2440=", mini2440_features_setup);
 572
 573#define FEATURE_SCREEN (1 << 0)
 574#define FEATURE_BACKLIGHT (1 << 1)
 575#define FEATURE_TOUCH (1 << 2)
 576#define FEATURE_CAMERA (1 << 3)
 577
 578struct mini2440_features_t {
 579        int count;
 580        int done;
 581        int lcd_index;
 582        struct platform_device *optional[8];
 583};
 584
 585static void __init mini2440_parse_features(
 586                struct mini2440_features_t * features,
 587                const char * features_str )
 588{
 589        const char * fp = features_str;
 590
 591        features->count = 0;
 592        features->done = 0;
 593        features->lcd_index = -1;
 594
 595        while (*fp) {
 596                char f = *fp++;
 597
 598                switch (f) {
 599                case '0'...'9': /* tft screen */
 600                        if (features->done & FEATURE_SCREEN) {
 601                                printk(KERN_INFO "MINI2440: '%c' ignored, "
 602                                        "screen type already set\n", f);
 603                        } else {
 604                                int li = f - '0';
 605                                if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
 606                                        printk(KERN_INFO "MINI2440: "
 607                                                "'%c' out of range LCD mode\n", f);
 608                                else {
 609                                        features->optional[features->count++] =
 610                                                        &s3c_device_lcd;
 611                                        features->lcd_index = li;
 612                                }
 613                        }
 614                        features->done |= FEATURE_SCREEN;
 615                        break;
 616                case 'b':
 617                        if (features->done & FEATURE_BACKLIGHT)
 618                                printk(KERN_INFO "MINI2440: '%c' ignored, "
 619                                        "backlight already set\n", f);
 620                        else {
 621                                features->optional[features->count++] =
 622                                                &mini2440_led_backlight;
 623                        }
 624                        features->done |= FEATURE_BACKLIGHT;
 625                        break;
 626                case 't':
 627                        printk(KERN_INFO "MINI2440: '%c' ignored, "
 628                                "touchscreen not compiled in\n", f);
 629                        break;
 630                case 'c':
 631                        if (features->done & FEATURE_CAMERA)
 632                                printk(KERN_INFO "MINI2440: '%c' ignored, "
 633                                        "camera already registered\n", f);
 634                        else
 635                                features->optional[features->count++] =
 636                                        &s3c_device_camif;
 637                        features->done |= FEATURE_CAMERA;
 638                        break;
 639                }
 640        }
 641}
 642
 643static void __init mini2440_init(void)
 644{
 645        struct mini2440_features_t features = { 0 };
 646        int i;
 647
 648        printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
 649                        mini2440_features_str);
 650
 651        /* Parse the feature string */
 652        mini2440_parse_features(&features, mini2440_features_str);
 653
 654        /* turn LCD on */
 655        s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
 656
 657        /* Turn the backlight early on */
 658        WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH, NULL));
 659        gpio_free(S3C2410_GPG(4));
 660
 661        /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
 662        gpio_request_one(S3C2410_GPB(1), GPIOF_IN, NULL);
 663        s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
 664        gpio_free(S3C2410_GPB(1));
 665
 666        /* mark the key as input, without pullups (there is one on the board) */
 667        for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
 668                s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
 669                s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
 670        }
 671        if (features.lcd_index != -1) {
 672                int li;
 673
 674                mini2440_fb_info.displays =
 675                        &mini2440_lcd_cfg[features.lcd_index];
 676
 677                printk(KERN_INFO "MINI2440: LCD");
 678                for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
 679                        if (li == features.lcd_index)
 680                                printk(" [%d:%dx%d]", li,
 681                                        mini2440_lcd_cfg[li].width,
 682                                        mini2440_lcd_cfg[li].height);
 683                        else
 684                                printk(" %d:%dx%d", li,
 685                                        mini2440_lcd_cfg[li].width,
 686                                        mini2440_lcd_cfg[li].height);
 687                printk("\n");
 688                s3c24xx_fb_set_platdata(&mini2440_fb_info);
 689        }
 690
 691        s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
 692        s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
 693        s3c_nand_set_platdata(&mini2440_nand_info);
 694        s3c_i2c0_set_platdata(NULL);
 695
 696        i2c_register_board_info(0, mini2440_i2c_devs,
 697                                ARRAY_SIZE(mini2440_i2c_devs));
 698
 699        platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
 700
 701        if (features.count)     /* the optional features */
 702                platform_add_devices(features.optional, features.count);
 703
 704}
 705
 706
 707MACHINE_START(MINI2440, "MINI2440")
 708        /* Maintainer: Michel Pollet <buserror@gmail.com> */
 709        .atag_offset    = 0x100,
 710        .map_io         = mini2440_map_io,
 711        .init_machine   = mini2440_init,
 712        .init_irq       = s3c2440_init_irq,
 713        .init_time      = mini2440_init_time,
 714MACHINE_END
 715